Meta Information
ID:zeaxanthin
Name:
Schema Version:2.4_uniform_evidence_2026_06_18
Created
2026-05-21T22:30:00Z
Model
phase-a-upgrade-claude-sonnet-4.6
Interactions
Target id:
/dietary/high-fat-meal
Target name:
Meal Containing Fat
Severity:
major
Interaction type:
requirement
Nature:
temporal
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
As a fat-soluble carotenoid, zeaxanthin requires dietary fats to form micelles for effective absorption in the small intestine.
Actionable advice:
It should be taken with a meal that contains healthy fats like olive oil, avocado, or nuts.
Validation status:
validated_via_pubmed
Evidence tier:
tier_b
Evidence basis:
pubmed_abstract_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
Although a minimum amount of TAG is required for an optimal bioavailability of these carotenoids, the effect of the type of TAG fatty acids (FA) is less clear.
Label source:
PubMed: The British journal of nutrition (2013)
Source url:
Exact phrase from label:
These results suggest that dietary fats/oils rich in unsaturated fatty acids promote carotenoid and α-TC bioavailability by enhancing their micellarization during digestion and intestinal transport.
Label source:
PubMed: Food & function (2014)
Source url:
Exact phrase from label:
The type and emulsification of dietary fat are both essential to carotenoid absorption. Findings from this study may provide scientific support for designing excipient emulsions as potential dietary strategies to optimize the absorption of fat-soluble compounds.
Label source:
PubMed: The American journal of clinical nutrition (2023)
Action type:
informational_none
Target id:
/intervention/lutein
Target name:
Lutein
Severity:
minor
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
2
Hours after target:
2
Description:
Lutein and zeaxanthin are eye-protective partner carotenoids that concentrate together in the macula. In the gut they are taken up by the same intestinal absorption machinery and therefore technically compete for uptake, so separating doses can modestly improve the absorption of each. In practice, however, this competition is minor at typical supplemental doses: controlled studies that co-supplement lutein and zeaxanthin together show both are absorbed and raise serum levels, which is why the widely used AREDS2 formulation combines them in a single daily dose.
Actionable advice:
For best absorption, lutein and zeaxanthin are best taken about 2 hours apart. However, these two supplements are frequently taken together with only modest change in the absorption of each at regular supplemental doses.
Validation status:
validated_via_pubmed
Evidence tier:
tier_b
Evidence basis:
pubmed_abstract_verbatim
Evidence anchors:
Exact phrase from label:
Serum L, Z, and MZ concentrations increased in all active interventions compared to placebo
Label source:
Green-Gomez et al., Antioxidants 2020 (PMC7463514); PMID 32824736
Exact phrase from label:
the bioavailability of lutein and zeaxanthin critically depends on the formulation used
Label source:
Evans et al., Eur J Nutr 2013 (PMC3663991); PMID 23052623
Exact phrase from label:
The bioaccessibility and cellular uptake (4-11%) of zeaxanthin were lower than lutein.
Label source:
Abdel-Aal et al., Foods 2023 (PMC10047919); PMID 36981233
Action type:
separate
Target id:
/class/bile-acid-sequestrants
Target name:
Bile Acid Sequestrants
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
4
Hours after target:
4
Description:
Bile acid sequestrants bind to bile acids and fat-soluble compounds like zeaxanthin in the gut, preventing their absorption.
Actionable advice:
Zeaxanthin and bile acid sequestrants should be separated by at least 4 hours.
Validation status:
validated_via_fda_label
Evidence tier:
tier_a
Evidence basis:
fda_label_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
Because cholestyramine binds bile acids, QUESTRAN may interfere with normal fat digestion
and absorption and thus may prevent absorption of fat-soluble vitamins such as A, D, E and
K.
Label source:
Action type:
separate
Target id:
/intervention/orlistat
Target name:
Orlistat (Alli, Xenical)
Severity:
major
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
2
Hours after target:
2
Description:
The weight-loss drug Orlistat blocks the absorption of dietary fat, which is essential for absorbing fat-soluble zeaxanthin.
Actionable advice:
Zeaxanthin should be taken at least 2 hours before or 2 hours after Orlistat.
Validation status:
validated_via_fda_label
Evidence tier:
tier_a
Evidence basis:
fda_label_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
11 DESCRIPTION
11 DESCRIPTION XENICAL (orlistat) is a gastrointestinal lipase inhibitor for obesity management that acts by inhibiting the absorption of dietary fats.
Label source:
Action type:
separate
Target id:
/condition/smoking-status
Target name:
Current Smoker
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
High-dose supplementation with the related carotenoid beta-carotene increased lung cancer risk in smokers; while not directly proven for zeaxanthin, caution with high doses is prudent. [class-derived from: beta-carotene (carotenoid class)]
Actionable advice:
If you are a smoker, consult your doctor before taking high-dose zeaxanthin supplements.
Validation status:
validated_via_class_inference
Evidence tier:
tier_c
Evidence basis:
class_inference_summary
Evidence anchors:
Source url:
Exact phrase from label:
supplementation with β-carotene increases the risk of lung cancer in smokers regardless of the tar or nicotine content
Label source:
Action type:
informational_none
Target id:
/intervention/meso-zeaxanthin
Target name:
Meso-zeaxanthin
Severity:
moderate
Interaction type:
synergistic
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
Meso-zeaxanthin, lutein, and zeaxanthin are the three essential carotenoids that form the macular pigment, working together to protect the central retina.
Actionable advice:
A formula that includes all three macular carotenoids is best chosen for comprehensive support.
Validation status:
validated_via_primary_literature
Evidence tier:
tier_b
Evidence basis:
primary_literature_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
The human macula uniquely concentrates three carotenoids: lutein, zeaxanthin, and meso-zeaxanthin.
Label source:
PubMed: Lutein, zeaxanthin, and meso-zeaxanthin: The basic and clinical science underlying carotenoid-based nutritional interventions against ocular disease. (PMID 26541886)
Action type:
informational_none
Target id:
/condition/pregnancy
Target name:
Pregnancy
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
While zeaxanthin from food is safe, the effects of high-dose supplementation have not been adequately studied in pregnancy.
Actionable advice:
Zeaxanthin supplements are best avoided during pregnancy unless specifically recommended by a healthcare provider.
Validation status:
anecdotal
Evidence tier:
tier_d
Evidence basis:
anecdotal_summary
Evidence anchors:
Exact phrase from label:
And there isn’t enough research to know if a zeaxanthin supplement is safe if you're pregnant or a child, or safe to take long term (past five years).
Label source:
Anecdotal: Cleveland Clinic
Action type:
avoid
Target id:
/condition/lactation
Target name:
Breastfeeding (Lactation)
Severity:
moderate
Interaction type:
adverse
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
It is unknown if high doses of supplemental zeaxanthin are safe for a nursing infant; dietary intake is considered safe.
Actionable advice:
Zeaxanthin supplements are best avoided while breastfeeding unless approved by a healthcare provider.
Validation status:
unvalidatable
Evidence tier:
tier_e
Evidence basis:
unvalidatable
Evidence anchors:
Source url:
Scientific literature support not found
Exact phrase from label:
Label source:
Action type:
avoid
Target id:
/class/viscous-fibers
Target name:
Gel-Forming Viscous Fibers
Severity:
minor
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
2
Hours after target:
2
Description:
High concentrations of gel-forming fibers (like psyllium or pectin) can physically trap fat-soluble nutrients, slightly impairing zeaxanthin absorption.
Actionable advice:
High-dose fiber supplements and zeaxanthin are best separated by at least 2 hours.
Validation status:
validated_via_pubmed
Evidence tier:
tier_b
Evidence basis:
pubmed_abstract_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
Dietary fiber contents in the test foods were inversely associated with carotenoid bioavailability.
Label source:
PubMed: Molecular nutrition & food research (2015)
Source url:
Exact phrase from label:
Results showed that PG treatment reduced median particle diameter (D50) and viscosity of CJ, and increased total carotenoid bioaccessibility by 41%.
Label source:
PubMed: Food chemistry (2023)
Source url:
Exact phrase from label:
Result reveals, that PC enhance the intestinal absorption of both micellar and dietary lutein which is either in free or bound form with food matrices in aged rats with lutein deficiency.
Label source:
PubMed: Journal of food science (2015)
Action type:
separate
Target id:
/intervention/omega-3-dha
Target name:
Omega-3 DHA (Ocular Specific)
Severity:
minor
Interaction type:
synergistic
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
DHA is a primary structural component of retinal cell membranes, and its presence may enhance the stability and function of zeaxanthin within the retina.
Actionable advice:
Consider pairing zeaxanthin with a high-DHA fish or algal oil for added retinal support.
Validation status:
validated_via_pubmed
Evidence tier:
tier_b
Evidence basis:
pubmed_abstract_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
Prior work has shown that docosahexaenoic acid (DHA), the major polyunsaturated fatty acid in the retina, delays apoptosis and promotes differentiation of photoreceptors. This study was conducted to investigate whether LUT, ZEA, and beta-carotene (BC), major dietary carotenoids protect photoreceptors from oxidative stress and whether this protection is synergistic with that of DHA.
Label source:
PubMed: Investigative ophthalmology & visual science (2007)
Source url:
Exact phrase from label:
Photoreceptor outer segments, for instance, have high concentrations of diet-derived long-chain polyunsaturated fatty acids and these membrane lipids are highly prone to peroxidation due to the high oxygen tension of the outer retina.
Label source:
PubMed: Progress in retinal and eye research (2011)
Source url:
Exact phrase from label:
% RBC membrane docosahexaenoic acid (DHA) was reduced in FMPD offspring vs. control offspring (P = 0.04). The Omega-3 Index was significantly decreased in the FMPD group (P = 0.03).
Label source:
PubMed: BMC ophthalmology (2020)
Action type:
informational_none
Target id:
/intervention/zinc
Target name:
Zinc
Severity:
minor
Interaction type:
synergistic
Nature:
absolute
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
Zinc is a critical cofactor for antioxidant enzymes in the retina and plays a role in transporting vitamin A, complementing the protective actions of zeaxanthin.
Actionable advice:
Adequate zinc intake is generally best maintained when taking zeaxanthin as part of a long-term eye health strategy.
Validation status:
validated_via_primary_literature
Evidence tier:
tier_b
Evidence basis:
primary_literature_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
In particular, zinc and selenium function as structural and catalytic cofactors for antioxidant enzymes such as superoxide dismutase and glutathione peroxidase, while vitamins A and D regulate cellular differentiation and calcium-phosphorus metabolism through transcriptional control mechanisms.
Label source:
PubMed: Mineral-Vitamin Complexes in Sheep Nutrition: Patent Analysis and Functional Evaluation for Pregnant Ewes and Lambs. (PMID 41900039)
Action type:
informational_none
Target id:
/intervention/vitamin-e
Target name:
Vitamin E (High Dose)
Severity:
minor
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
0
Hours after target:
0
Description:
Very high doses of supplemental vitamin E (>400 IU) may compete with other fat-soluble nutrients like zeaxanthin for intestinal absorption.
Actionable advice:
Very high doses of vitamin E and zeaxanthin are best separated rather than taken at the same time.
Validation status:
validated_via_pubmed
Evidence tier:
tier_b
Evidence basis:
pubmed_abstract_verbatim
Evidence anchors:
Source url:
Exact phrase from label:
Significant competitive interactions for uptake were then elucidated among vitamin D, E and K, supporting the hypothesis of common absorption pathways. Vitamin A also significantly decreased the uptake of the other FSVs but, conversely, its uptake was not impaired by vitamins D and K and even promoted by vitamin E.
Label source:
PubMed: Food chemistry (2015)
Source url:
Exact phrase from label:
The supplement contained 5% lutein, 0.22% zeaxanthin and 2.2% natural vitamin E as a preservative. Concentrations of trans-phylloquinone in the plasma (nmol/mmol triglycerides) and heart were significantly reduced (P < or = 0.05) in rats fed the supplement.
Label source:
PubMed: International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition (2001)
Source url:
Exact phrase from label:
In conclusion, dietary α-tocopherol enhances bioavailability of lutein reflecting higher content in egg yolk and blood plasma. Improved bioavailability might be due to increased absorption of lutein in the presence of tocopherol and/or a greater stability of lutein/zeaxanthin due to the presence of α-tocopherol as an antioxidant.
Label source:
PubMed: Journal of animal physiology and animal nutrition (2016)
Action type:
avoid
Target id:
/intervention/astaxanthin
Target name:
Astaxanthin
Severity:
minor
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
2
Hours after target:
2
Description:
Carotenoids like astaxanthin, zeaxanthin, lutein, and lycopene share the same intestinal transport proteins (SR-B1 and CD36) and compete for absorption when taken together.
Actionable advice:
Carotenoid supplements are best separated by about 2 hours to allow each one to be absorbed without competition.
Validation status:
validated_via_class_inference
Evidence tier:
tier_c
Evidence basis:
class_inference_summary
Evidence anchors:
Source url:
Exact phrase from label:
Carotenoid absorption is mediated by intestinal proteins including SR-BI and CD36, leading to competition between dietary carotenoids for uptake.
Label source:
PubMed: Carotenoid metabolism at the intestinal barrier. (PMID 29632987)
Action type:
separate
Target id:
/intervention/lycopene
Target name:
Lycopene
Severity:
minor
Interaction type:
diminishing
Nature:
temporal
Temporal spacing:
Hours before target:
2
Hours after target:
2
Description:
Carotenoids like astaxanthin, zeaxanthin, lutein, and lycopene share the same intestinal transport proteins (SR-B1 and CD36) and compete for absorption when taken together.
Actionable advice:
Carotenoid supplements are best separated by about 2 hours to allow each one to be absorbed without competition.
Validation status:
validated_via_class_inference
Evidence tier:
tier_c
Evidence basis:
class_inference_summary
Evidence anchors:
Source url:
Exact phrase from label:
Carotenoid absorption is mediated by intestinal proteins including SR-BI and CD36, leading to competition between dietary carotenoids for uptake.
Label source:
PubMed: Carotenoid metabolism at the intestinal barrier. (PMID 29632987)
Action type:
separate